Enter
|
Register
Home
Top
Catalog
Contests
Gym
Problemset
Groups
Rating
Edu
API
Calendar
Help
→ Pay attention
Contest is running
Kotlin Heroes: Practice 10
18:40:34
Register now »
Before contest
Kotlin Heroes: Episode 10
19:40:34
Register now »
→ Filter Problems
Difficulty:
—
data structures
combine-tags-by-or
*combine tags by OR
2-sat
binary search
bitmasks
brute force
chinese remainder theorem
combinatorics
constructive algorithms
data structures
dfs and similar
divide and conquer
dp
dsu
expression parsing
fft
flows
games
geometry
graph matchings
graphs
greedy
hashing
implementation
interactive
math
matrices
meet-in-the-middle
number theory
probabilities
schedules
shortest paths
sortings
string suffix structures
strings
ternary search
trees
two pointers
Add tag
Main
acmsguru
|
Problems
Submit
Status
Standings
Custom test
Problems
#
Name
1878E
Iva & Pav
binary search
,
bitmasks
,
data structures
,
greedy
1400
x11097
1279C
Stack of Presents
data structures
,
implementation
1400
x11423
1648A
Weird Sum
combinatorics
,
data structures
,
geometry
,
math
,
matrices
,
sortings
1400
x11763
1805C
Place for a Selfie
binary search
,
data structures
,
geometry
,
math
1400
x12022
1860C
Game on Permutation
data structures
,
dp
,
games
,
greedy
1400
x12433
1955D
Inaccurate Subsequence Search
data structures
,
two pointers
1400
x12766
1719C
Fighting Tournament
binary search
,
data structures
,
implementation
,
two pointers
1400
x12868
1292A
NEKO's Maze Game
data structures
,
dsu
,
implementation
1400
x12938
1654C
Alice and the Cake
data structures
,
greedy
,
implementation
,
sortings
1400
x13160
1749C
Number Game
binary search
,
data structures
,
games
,
greedy
,
implementation
1400
x13374
1932C
LR-remainders
brute force
,
data structures
,
implementation
,
math
,
two pointers
1400
x13690
1697C
awoo's Favorite Problem
binary search
,
constructive algorithms
,
data structures
,
greedy
,
implementation
,
strings
,
two pointers
1400
x13944
1551B2
Wonderful Coloring - 2
binary search
,
constructive algorithms
,
data structures
,
greedy
1400
x15050
650A
Watchmen
data structures
,
geometry
,
math
1400
x15062
1728C
Digital Logarithm
data structures
,
greedy
,
sortings
1400
x15184
1320A
Journey Planning
data structures
,
dp
,
greedy
,
math
,
sortings
1400
x15459
1692G
2^Sort
data structures
,
dp
,
sortings
,
two pointers
1400
x15967
1519C
Berland Regional
brute force
,
data structures
,
greedy
,
number theory
,
sortings
1400
x15978
295A
Greg and Array
data structures
,
implementation
1400
x16082
1393B
Applejack and Storages
constructive algorithms
,
data structures
,
greedy
,
implementation
1400
x16263
816B
Karen and Coffee
binary search
,
data structures
,
implementation
1400
x16458
1515C
Phoenix and Towers
constructive algorithms
,
data structures
,
greedy
1400
x16523
1919C
Grouping Increases
data structures
,
dp
,
greedy
1400
x16831
1490E
Accidental Victory
binary search
,
data structures
,
greedy
1400
x18398
514B
Han Solo and Lazer Gun
brute force
,
data structures
,
geometry
,
implementation
,
math
1400
x20181
1375C
Element Extermination
constructive algorithms
,
data structures
,
greedy
1400
x20447
1506D
Epic Transformation
constructive algorithms
,
data structures
,
greedy
1400
x20738
1365C
Rotation Matching
constructive algorithms
,
data structures
,
greedy
,
implementation
1400
x22383
1348B
Phoenix and Beauty
constructive algorithms
,
data structures
,
greedy
,
sortings
1400
x24550
1324D
Pair of Topics
binary search
,
data structures
,
sortings
,
two pointers
1400
x26778
195B
After Training
data structures
,
implementation
,
math
1300
x5121
1424G
Years
data structures
,
sortings
1300
x5648
222B
Cosmic Tables
data structures
,
implementation
1300
x5983
808B
Average Sleep Time
data structures
,
implementation
,
math
1300
x6648
572B
Order Book
data structures
,
greedy
,
implementation
,
sortings
1300
x6756
932B
Recursive Queries
binary search
,
data structures
,
dfs and similar
1300
x7795
982B
Bus of Characters
data structures
,
greedy
,
implementation
1300
x8177
777B
Game of Credit Cards
data structures
,
dp
,
greedy
,
sortings
1300
x9339
1867C
Salyg1n and the MEX Game
constructive algorithms
,
data structures
,
games
,
greedy
,
interactive
1300
x10560
1870C
Colorful Table
binary search
,
data structures
,
dp
,
implementation
,
math
,
two pointers
1300
x10737
1100B
Build a Contest
data structures
,
implementation
1300
x10895
1007A
Reorder the Array
combinatorics
,
data structures
,
math
,
sortings
,
two pointers
1300
x11987
1726C
Jatayu's Balanced Bracket Sequence
data structures
,
dsu
,
graphs
,
greedy
1300
x12075
1265B
Beautiful Numbers
data structures
,
implementation
,
math
,
two pointers
1300
x12301
1638C
Inversion Graph
data structures
,
dsu
,
graphs
,
math
1300
x14374
1736C1
Good Subarrays (Easy Version)
binary search
,
data structures
,
schedules
,
two pointers
1300
x14523
1237B
Balanced Tunnel
data structures
,
sortings
,
two pointers
1300
x14736
1676F
Longest Strike
data structures
,
greedy
,
implementation
,
sortings
,
two pointers
1300
x15861
1498B
Box Fitting
binary search
,
bitmasks
,
data structures
,
greedy
1300
x16111
1234B2
Social Network (hard version)
data structures
,
implementation
1300
x16459
1698C
3SUM Closure
brute force
,
data structures
1300
x17933
1703F
Yet Another Problem About Pairs Satisfying an Inequality
binary search
,
data structures
,
dp
,
greedy
,
sortings
1300
x18228
1927D
Find the Different Ones!
binary search
,
brute force
,
data structures
,
dp
,
dsu
,
greedy
,
two pointers
1300
x18284
1915E
Romantic Glasses
data structures
,
greedy
,
math
1300
x18513
1381A1
Prefix Flip (Easy Version)
constructive algorithms
,
data structures
,
strings
1300
x19842
1538C
Number of Pairs
binary search
,
data structures
,
math
,
two pointers
1300
x27030
600B
Queries about less or equal elements
binary search
,
data structures
,
sortings
,
two pointers
1300
x27493
4C
Registration System
data structures
,
hashing
,
implementation
1300
x77332
264A
Escape from Stones
constructive algorithms
,
data structures
,
implementation
,
two pointers
1200
x10604
701B
Cells Not Under Attack
data structures
,
math
1200
x11578
879B
Table Tennis
data structures
,
implementation
1200
x11874
1951B
Battle Cows
binary search
,
data structures
,
greedy
1200
x12012
18C
Stripe
data structures
,
implementation
1200
x12472
1214C
Bad Sequence
data structures
,
greedy
1200
x12839
1848B
Vika and the Bridge
binary search
,
data structures
,
greedy
,
implementation
,
math
,
sortings
1200
x13387
1763B
Incinerate
binary search
,
brute force
,
data structures
,
implementation
,
math
,
sortings
1200
x13911
1582C
Grandma Capa Knits a Scarf
brute force
,
data structures
,
greedy
,
strings
,
two pointers
1200
x14422
1104B
Game with string
data structures
,
implementation
,
math
1200
x14482
637B
Chat Order
*special problem
,
binary search
,
constructive algorithms
,
data structures
,
sortings
1200
x15065
1730C
Minimum Notation
data structures
,
greedy
,
math
,
sortings
1200
x16066
1669E
2-Letter Strings
data structures
,
math
,
strings
1200
x16922
1679B
Stone Age Problem
data structures
,
implementation
1200
x16983
1846C
Rudolf and the Another Competition
constructive algorithms
,
data structures
,
dp
,
greedy
,
sortings
1200
x17955
1793C
Dora and Search
constructive algorithms
,
data structures
,
two pointers
1200
x18158
1790D
Matryoshkas
data structures
,
greedy
,
sortings
1200
x18194
961B
Lecture Sleep
data structures
,
dp
,
implementation
,
two pointers
1200
x19259
1598C
Delete Two Elements
data structures
,
dp
,
implementation
,
math
,
two pointers
1200
x20063
1006C
Three Parts of the Array
binary search
,
data structures
,
two pointers
1200
x20300
1800D
Remove Two Letters
data structures
,
greedy
,
hashing
,
strings
1200
x21706
1512D
Corrupted Array
constructive algorithms
,
data structures
,
greedy
1200
x21706
1364A
XXXXX
brute force
,
data structures
,
number theory
,
two pointers
1200
x26802
1520D
Same Differences
data structures
,
hashing
,
math
1200
x42734
1575A
Another Sorting Problem
data structures
,
sortings
,
strings
1100
x4224
834B
The Festive Evening
data structures
,
implementation
1100
x8517
522B
Photo to Remember
*special problem
,
data structures
,
dp
,
implementation
1100
x8689
755B
PolandBall and Game
binary search
,
data structures
,
games
,
greedy
,
sortings
,
strings
1100
x10923
427B
Prison Transfer
data structures
,
implementation
1100
x13706
1566D1
Seating Arrangements (easy version)
data structures
,
greedy
,
sortings
1100
x13773
501B
Misha and Changing Handles
data structures
,
dsu
,
strings
1100
x15622
1656B
Subtract Operation
data structures
,
greedy
,
math
,
two pointers
1100
x17671
1807G1
Subsequence Addition (Easy Version)
brute force
,
data structures
,
dp
,
greedy
,
implementation
,
sortings
1100
x17866
1492B
Card Deck
data structures
,
greedy
,
math
1100
x18133
1760E
Binary Inversions
data structures
,
greedy
,
math
1100
x19278
767A
Snacktower
data structures
,
implementation
1100
x19284
1917B
Erase First or Second Letter
brute force
,
combinatorics
,
data structures
,
dp
,
strings
1100
x19420
1862C
Flower City Fence
binary search
,
data structures
,
implementation
,
sortings
1100
x19653
1428C
ABBB
brute force
,
data structures
,
greedy
,
strings
1100
x19674
1921D
Very Different Array
data structures
,
greedy
,
sortings
,
two pointers
1100
x19984
1638B
Odd Swap Sort
data structures
,
math
,
sortings
1100
x20416
1800C2
Powering the Hero (hard version)
data structures
,
greedy
1100
x21367
←
1
2
...
14
15
16
17
→
User lists
Name